After step one of this registration, I checked measuring block groups for 017, 018, 019 and 020 and values look sensible, all may not be correct as original battery had less Ah, CCA, and reserve capacity. I just changed one number in the battery serial number for battery registration. Following this article and some other articles from the past stating to trick the module by changing just one digit in battery serial number for a battery without peculiar codes like original battery that came with my car. So, I did further dowsing and found there is a possibility of battery registration being slave to CAN gateway and that needs a different process to register the battery. I can't use this, as when I try to access it, VCDS will time out. I can only see 61-Battery Regulation under Drive train tab. I did try to go to Address 19-CAN Gateway to see if I can click/toggle on Address 61 to make it visible under installed addresses. I don't see Address 61 - Battery regulation listed under installed addresses. I've experienced this in VCDS while trying to register new battery (EverStart AGM H8): I've a query on new battery registration process in VCDS using HEX-NET for my 2015 Audi Q5.
